【化】 游离酶

壳聚糖酶在经固定化后,最适温度为50℃,最适pH为4.5,并表现出比游离酶更高的热稳定性,固定化酶的米氏常数Km值为14.29 g/L;

duty-free

free-trade port，free port

Tech-free tourism

the low-tax, tariff-free zone; bonded area; tax-protected zone

failure of the liver's free coursing

Serum-free and Specialty Media and Reagent

by-pass check valve (free-wheeled check valve)

interest free deposit